Crusher



Feb. 3, 1925.

E. B. SMITH CRUSHER Filed March 22 1924 2 Sheets-Sheet 2 INVENTOR. fp 3 51 1/7 If.

A TTORNEYS.

Feb. 3, 1925.

E. B. SMITH cnusrmn I Filed March 22, 1924 2 ShOQts-Sheet 1 ATTORNEYS.

Patented Feb. 3, 1925.

UNITED STATES 1,524,675 PATENTOFFICE. I

EDWIN B. SMITH, F MARION, INDIANA, ASSIGNOR T O MARION-MACHINE, FOUNDRY 86 SUPIPLY COMPANY, OF MARION, INDIANA, A CORPORATION.

GRUSHE'R.

Application filed March 22, 1924. Serial No. 701,091.

I Z '0 all whom it may concern:

- Be it known that I, EDWIN B. SMITH, a citizen of the United States, and a resident of Marion, county of Grant, and State of Indiana, have invented a certain new and useful Crusher; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like numerals refer to like parts.

This invention relates to a crusher which is herein illustrated as of the single roll type.

The chief object of the invention is to construct a crusher which will have considerable flexibility and considerable capacity.

Another object of the invention is to construct and arrange the parts of the crusher in such a manner that the same may be readily removed forreplacement or repair purposes and only those parts removed and renewed which require renewal.

The chief feature of the invention consists in the construction of the crusher in units and providing the respective units with suitable actuating means for actuating said units as a whole, but which permits said units to operate with considerable flexibility.

The full nature of the'invention will be understood from the accompanying drawings and the following description and claims: 1

In the drawings, Fig. 1 is a top plan view of a crusher of the-roll type embodying the features of the invention. Fig. 2 is a side elevationalview thereof, parts being shown dotted. Fig. 3 is. a transverse sectional view of a crusher unit roll and is taken on the line 3-3 of Fig. 2 and in the direction of the arrows. Fig. 4 is a. plan View of one-ofv the breaker plate units.

In the present invention the crusher is illustrated as of the roll type, and herein the same is shown composed of a plurality of crusher roll forming units. These roll forming units are herein shown suitably supported upon a common shaft, and so supported in the present instance that they operate simultaneously and have no relative. movement with respect to each other. Associated with the unified roll is a unified breaker plate construction including a'plurality of unit breaker plates, each mounted upon a common support and individually actuated to return to a predetermined normal position-when subjected to unusual stress. The

advantage obtained by 'thus forming the breaker plate in units is that if the crusher operates upon coal of rather uniform size and attempts to operate at one portion upon a relatively larger size, that operating portion adjacent the larger size piece of coal will yield and permit the crusher to reduce the size of the larger sized coal. At the same time, however, the remainder of the crusher does not vary, therefore, and the normal crushing action is carried on simultaneously with this abnormal crushingaetion, reference being had to the reduction of an unusually large size piece of material to smaller sizes corresponding to the initial size of the normal run of the material. This feature of the invention-permits the crusher tooperate upon material which runs from expeditiously reduce the same to the desired I final size, which, it will be apparent, gives the resultant crusher a capacity greater than the usualcrushers, for the reason that all parts-of the crusher are operating at all times and-insures that the product dis charged from the crusher is ofsubstantially uniform size.

In the drawings 10 indicates, a basc'having the sides 11 upstanding'therefrom and provided with a pair of. bearings 12 and 13 therein. Caps 1 1 and 15 rotatably support shaft-s 16 and 17in said bearings. Herein theshaft 17 supports a power pulley 18 at an extended end, while upon its opposite extended end itcarries a suitable gear wheel 19 adapted to mesh with a similar Wheel 20 upon the extended end of the shaft 16. The sides 11 also are provided with another bearing 21 in the upper portion, and the caps 22 secure a shaft or pivot 23 therein, which herein is shown as a stationary pivot, since set screw 24 is provided.

The sides 11 of the base are connected by an inclined plate 25 and these together with the breaker plate construction indicated generally by the numeral 26 form a hopper, the

latter also forming a portion of the crushing 29, as shown. Each crushing unit roll upon its peripheral silri'ace is pro-vide d with a plurality, and here-in three are illustrated,

of rows of small crushing teeth 80. 1%"

spaced distances about the periphery and medianly positioned on the roll a reyauplu-g rality of larger teeth 31. The individual rolls are so positioned With respect to each other, see Fig. 1, that the larger teeth 31 of adjacent rolls are in sta'g'geied relation;

diaiily positioned tooth 3'3 somewhat larger than another ii of teeth 3e also inedianly but loii er positioned; These teeth are iiidicated by the mineral 341 1 Beneath the pair of teeth 34, there is'pifovided another set row of teeth 35 soiiiewliat' smaller than the last! mentioned teeth, ,and herein are shown as three in number. The breaker plate unit: as illustrated 'partiularly in Figs. 1" and Q'is' recessed as at 36 to receive a chilled steel shoe 37, which chilled steel shoe is suitably seeured to -said unit by the belts 38'aiid nuts' 39, said boltheads being seatable' in the: recesses 40 provided in said shoe. The 'sl'ioe' also includes iir its Serra-tea plurality of groeves 41* and other paranei groovesea These gr'ooves arepi'oyided for the passage or the teeth' 31 a d 30 respeeu ei The teeth 30 \vliieh are in alignment with the teeth 31, of course, readily pass threu gh the deeper groove 4t2. 4

To" secure gi e'a'tei flexibillty, each of the unitplates 26 which-includes a loive'rpivot bearing 4P3- pivotally supports bolt 4A which is athipted to lie-in a slot 45in a trans} t-rseplate illi Between the p l a'te 46 aiid the'head'of the bolt herein indicated by the numeral 17, there is interposed spring 4:8 for normally projectingthebreaker unit ii 't'e the throat of the crush-er. The te'nsie i-o'ithe sprin 48 is gees-nee by the pair of kicking nuts 49. r The transverse plate 4 6, as shewn clearly iii-Fig. 1-, is pi-eviue lwitha sei iesofp llel slots 45", whiehslots are adapt-auto 1 ecei've the pamileibolts 44 ofthe unitbreaker plates; plate 46 at each end supports an angular strap 50 which has a" toothed portion 51 adapted to engage one of a plu rali tyof teeth 52 provided in tlie'eeiten' sions 530i the sides 11, Tl'iebolts and mite inplace the breakerplateyall that is necessary is to remove the cap 22 of the desired pl'a'te and loosen the locking nuts 49 of the same plate. The bolt 44 is then removed fi"'o1irtlreslot45-ahtl the entire plate is removed from the crusher frame. The aforesaid arrangement of the yielding mounting oftlfe ici-ush'er' consfirucudn permits individu'aladjustnieiit of each of the'units of the breaker plate. I

The" construction off the crusher so as to provideaplu'rality of yieldin'gly supported breaker units, permits each unit to yield indepei'idently" with respect to" other units ivhenever necessary.

The invention claimed is: I 1i Ina'crusher, th'ecoinbination of a hoper -menses open face, a crushing ele ment" ino'vably mo'uffted in" the throat of the hopper, acrus'hing plate positioned in the hopper open" face,- said plate and element eaeh comprising} v a: plurality of substantial- 13* similar crusher forining units, said crush- "element: unit having a tdothe'd periphery iiidlildilig a plurality of peripherally and transversely arranged ro w'sei teeth and a plurality of other teeth" of dissimilar size, crusher 'e'len iieiit forming units being arranged relatively to each other forstaggeri'ng said'otli'er teeth, and a hoot detachably assobiat'ed ivith the end of each of the crushiiigiplateforiiiing' units, each boot including a plurality of parallel positioned grooves for passage of the teeth on the crushing element. v

2. A' device of the character described in claim 1 characterized by the addition of another groove in each boot and suitablypositiened"forjtlielp'ass'a'geof the other teeth on the movable element.

3. a crusher'o-fthe'character described, the combihation of a hopper having an open face, a crushing element movably mounted ih'tliethioat of the hopper including a plurality' of similar crushin units each unit including a plurality of teeth or dissimilar size, a crushing plate dsiueneu in the hopp er open fa ce,sai'd crusher plate'inoluding 1. plurality of'substantially siniilar plate forniiiig ui its, common pivotal mounting for e'ach'ol said plate forming units, individual yielding means associated with each plate foiiiiiiig uiiit, and a common supportfor all of said individual yielding means.

I 41in a devic'e' of the character described in claiiii 8 and characterized by an adjustable support for said individual yielding m'ean's eonimon support.

11$ witness whereof, I' have hereunto affixed my signature.

- EDWIN 1%; SMITH. 

